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311660342 = 2722261453
BaseRepresentation
bin10010100100111…
…000111100110110
3210201102222121122
4102210320330312
51114241112332
650531543542
710503032510
oct2244707466
9721388548
10311660342
1114aa19034
128845abb2
134c751306
142d56abb0
151c563c12
hex12938f36

311660342 has 8 divisors (see below), whose sum is σ = 534274896. Its totient is φ = 133568712.

The previous prime is 311660339. The next prime is 311660353. The reversal of 311660342 is 243066113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11130713 + ... + 11130740.

It is an arithmetic number, because the mean of its divisors is an integer number (66784362).

Almost surely, 2311660342 is an apocalyptic number.

311660342 is a deficient number, since it is larger than the sum of its proper divisors (222614554).

311660342 is a wasteful number, since it uses less digits than its factorization.

311660342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22261462.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 311660342 is about 17653.9044406613. The cubic root of 311660342 is about 677.9960769925.

The spelling of 311660342 in words is "three hundred eleven million, six hundred sixty thousand, three hundred forty-two".

Divisors: 1 2 7 14 22261453 44522906 155830171 311660342